Thursday, April 18, 2013

Nodes are Still News: Robert Kosara in Harvard Business Review Blog

I mentioned eagereyes.com the other day. This is the braindhild of Robert Kosara who, it turns out, is a very prolific thinker on the subject of data visualization.

I ran across his work again today in a post on the Harvard Business Review Blog. Here's the map I made of his post (and I'll post it to Biggerplate):

What I thought was interesting about his post was that:

He mentions node maps. (I say this as one of the brotherhood/sisterhood of people who don't get why mind mapping, such a powerful approach to information management, struggles so hard to find an audience. So it's always nice to see this approach mentioned, however tangential to the way mind mapping is normally used. And ever nicer to see it mentioned in the HBR by someone of Kosara's stature among data visualization professionals.)

He brings up the issue of the "potential interaction" between visual and linguistic metaphors used in node-link diagrams and treemaps. It's exciting that people are looking at this interaction, something that I think people who mind map at least think they understand and try to leverage.

For example,
two separate participants explained that they considered the donut
chart less stable because it seemed like it might “roll away.” This
kind of analysis also seemed to underly the evaluations of the bubble chart as unstable and uncontrolled, with participants describing
this chart as “ﬂoating bubbles that were barely contained within
the area” and “scattered.” Similarly, charts without joined pieces
were often described as “ﬂying apart” or “exploding.”

Is he referring to mind maps when he says bubble charts (I have heard people use these terms interchangeably)? Do people feel that way when they see a mind map? Is all hope lost?

But further communication with Kosara relieved me when he said he was referring to a scatterplot, like this one from Gapminder (gapminder.org):

I have asked Kosara whether he plans to pursue research into the potential interaction between visual and linguistic metaphors he mentioned in the HBR blog. I'll let you know if I hear anything from him...